EP0726268B1 - Benzisoxazoles et benzisothiazoles substitués et leur utilisation comme herbicides - Google Patents

Benzisoxazoles et benzisothiazoles substitués et leur utilisation comme herbicides Download PDF

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EP0726268B1
EP0726268B1 EP96300453A EP96300453A EP0726268B1 EP 0726268 B1 EP0726268 B1 EP 0726268B1 EP 96300453 A EP96300453 A EP 96300453A EP 96300453 A EP96300453 A EP 96300453A EP 0726268 B1 EP0726268 B1 EP 0726268B1
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formula
group
compound
reacting
preparing
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EP0726268A1 (fr
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Peter J. Wepplo
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Wyeth Holdings LLC
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American Cyanamid Co
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    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D275/00—Heterocyclic compounds containing 1,2-thiazole or hydrogenated 1,2-thiazole rings
    • C07D275/04—Heterocyclic compounds containing 1,2-thiazole or hydrogenated 1,2-thiazole rings condensed with carbocyclic rings or ring systems
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
    • A01N43/72—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms
    • A01N43/80—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms five-membered rings with one nitrogen atom and either one oxygen atom or one sulfur atom in positions 1,2
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D261/00—Heterocyclic compounds containing 1,2-oxazole or hydrogenated 1,2-oxazole rings
    • C07D261/20—Heterocyclic compounds containing 1,2-oxazole or hydrogenated 1,2-oxazole rings condensed with carbocyclic rings or ring systems
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D413/00—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms
    • C07D413/02—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms containing two hetero rings
    • C07D413/04—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms containing two hetero rings directly linked by a ring-member-to-ring-member bond
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D417/00—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group C07D415/00
    • C07D417/02—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group C07D415/00 containing two hetero rings
    • C07D417/04—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group C07D415/00 containing two hetero rings directly linked by a ring-member-to-ring-member bond

Definitions

  • Certain benzisoxazole and benzisothiazole compounds are known to have herbicidal or auxin-like activity (U.S. 3,657,263; EP 442655-A2; E. Chrystal, T. Cromartie, R. Ellis and M. Battersby, Proceedings of the Brighton Crop Protection Conference - Weeds, 1 , pp. 189-194 (1993); K. Sato, T. Honma and S. Sugai, Journal of Agricultural and Biological Chemistry, 49 , pp. 3563-3567 (1985); and M. Giannella, F. Gualtieri and C. Melchiorre, Phytochemistry, 10 , pp. 539-544 (1971)).
  • EP 549892-A1 describes similarly substituted dihydroindole derivatives useful as herbicidal agents.
  • U.S. 4,844,728 describes certain pyrazole-1,2-benzisothiazole and -benzisoxazole compounds which are used as intermediates in the preparation of pyrazole-sulfonamide herbicidal agents.
  • the compounds of the present invention are not specifically described in that patent and no herbicidal activity is disclosed for those intermediate compounds.
  • the present invention describes substituted benzisoxazole and benzisothiazole compounds which are useful as herbicidal agents.
  • This invention also relates to compositions containing those compounds and methods for using those compounds and compositions.
  • the compounds of the present invention, and compositions containing them are useful for the control of undesirable plant species.
  • the compounds of the present invention are especially useful for the postemergence control of undesirable plant species.
  • the present invention provides a method for controlling undesirable plant species which comprises applying to the foliage of said plants or to the soil or water containing seeds or other propagating organs thereof, a herbicidally effective amount of a formula I, substituted benzisoxazole or benzisothiazole compound.
  • the present invention also provides a method for the control of undesirable plant species in transplanted rice which comprises applying to the soil or water containing seeds or other propagating organs of said undesirable plant species, after the rice has been transplanted, a herbicidally effective amount of a formula I, substituted benzisoxazole or benzisothiazole compound.
  • Preferred formula I substituted benzisoxazole and benzisothiazole compounds of this invention are those wherein
  • herbicidal agents of the present invention are those having the structural formula II wherein
  • Another group of more preferred substituted benzisoxazole and benzisothiazole compounds of the present invention are those having the structural formula II wherein
  • herbicidal agents of this invention which are especially useful for the postemergence control of undesirable plant species are those having the structural formula II wherein
  • Substituted benzisoxazole and benzisothiazole compounds of the present invention which are particularly effective herbicidal agents include
  • halogen hereinabove are fluorine, chlorine, bromine and iodine.
  • C 1 -C 4 haloalkyl and “C 1 -C 4 haloalkoxy” are defined as a C 1 -C 4 alkyl group or a C 1 -C 4 alkoxy group substituted with one or more halogen atoms, respectively.
  • alkali metals include: sodium, potassium and lithium.
  • alkaline earth metals of formula I include magnesium and calcium.
  • the compounds of the present invention are especially useful for the postemergence control of undesirable plant species.
  • Certain compounds of the present invention wherein Q is Q1 may be prepared by converting an aminobenzisoxazole or aminobenzisothiazole of formula III to its corresponding isocyanate of formula IV using standard methods such as phosgene in an inert solvent or palladium chloride and carbon monoxide.
  • the formula IV compound is then treated with an amino acid of formula V, an amino ester of formula VI in the presence of triethylamine followed by treatment of the intermediate urea of formula VII with ethanolic hydrogen chloride, or an ⁇ -bromocarboxamide of formula VIII in the presence of a base such as potassium t-butoxide to form the desired compound.
  • a base such as potassium t-butoxide
  • Compounds of formula I wherein Q is Q2 may be prepared by converting an aminobenzisoxazole or aminobenzisothiazole of formula III to its corresponding azide of formula IX by treatment with sodium nitrite, sodium azide, acetic acid, hydrogen chloride and sodium acetate or with sodium nitrite, hydrazine hydrate and acetic acid.
  • the formula IX compound is then treated with an isocyanate of formula X to form the desired product.
  • compounds of formula I wherein Q is Q2 may be prepared by reacting an isocyanate of formula IV with trimethyl silylazide to form a compound of formula XI and alkylating the formula XI compound by conventional means.
  • Formula I compounds wherein Q is Q6 and A and A 1 are O may be prepared by reacting an aminobenzisoxazole or aminobenzisothiazole of formula III with an anhydride compound of formula XII, preferably at an elevated temperature.
  • Formula I compounds wherein Q is Q6 and at least one of A or A 1 is S may be prepared by treating a formula I compound wherein Q is Q6 and A and A 1 are O with phosphorus pentasulfide or Lawesson's reagent (2,4-bis (4-methoxyphenyl)-1,3-dithia-2,4-diphosphetane-2,4-disulfide) in an inert solvent such as toluene, xylene or chloroform.
  • phosphorus pentasulfide or Lawesson's reagent 2,4-bis (4-methoxyphenyl)-1,3-dithia-2,4-diphosphetane-2,4-disulfide
  • Compounds of formula I wherein Q is Q3 may be prepared by reacting a compound of formula I wherein Q is Q6 and A and A 1 are O with sodium borohydride to form a compound wherein V is OH, reacting the compound wherein V is OH with a base and a suitable alkylating agent to form a compound wherein V is C 1 -C 3 alkoxy or reacting the compound wherein V is OH with a halogenating agent such as phosphorus trichloride, thionyl chloride, phosphorus tribromide, triphenyl phosphine-bromine, phosphorus triiodide or triphenyl phosphine-iodine in an inert solvent such as chloroform to form a compound wherein V is halogen and further reacting the compound wherein V is halogen with a C 1 -C 3 alkyl sulfide to form a compound wherein V is C 1 -C 3 alkylthio.
  • Q is Q5
  • Z is nitrogen
  • a and A 1 are oxygen
  • Q isocyanate of formula IV
  • a substituted N-alkoxy-carbonyl hydrazine of formula XII to form an intermediate compound and reacting the intermediate compound with a base to obtain the desired compound.
  • formula I compounds wherein Q is Q5, Z is nitrogen, A is sulfur and A 1 is oxygen may be prepared by reacting an aminobenzisoxazole or aminobenzisothiazole of formula III with thiophosgene to form an isothiocyanate of formula XIII, reacting the isothiocyanate with a substi-tuted N-alkoxycarbonyl hydrazine of formula XII to form an intermediate compound and reacting the intermediate compound with a base.
  • Compounds of formula I wherein Q is Q5, Z is carbon, A is sulfur and A 1 is oxygen may be prepared by reacting an isothiocyanate of formula XIII with an amino ester of formula VI in an inert solvent to form an intermediate, thiourea compound and treating the thiourea compound with ethanolic hydrogen chloride or base at an elevated temperature.
  • Formula I compounds wherein Q is Q5 and A and/or A 1 are sulfur may be prepared by treating a formula I compound wherein Q is Q5 and A and A 1 are oxygen with phosphorus pentasulfide or Lawesson's reagent (2,4-bis(4-methoxyphenyl)-1,3-dithia-2,4-diphosphetane-2,4-disulfide) in an inert solvent such as toluene, xylene or chloroform.
  • phosphorus pentasulfide or Lawesson's reagent 2,4-bis(4-methoxyphenyl)-1,3-dithia-2,4-diphosphetane-2,4-disulfide
  • Formula I compounds wherein Q is Q4 may be prepared by diazotizing an aminobenzisoxazole or aminobenziso-thiazole of formula III by standard methods to form an intermediate compound which is reduced with sodium sulfite to form a hydrazine of formula XIV.
  • the hydrazine is then reacted with an imino-ester of formula XV to form an amidrazone of formula XVI and reacting the amidrazone with phosgene or a suitable phosgene equivalent optionally in the presence of triethylamine to form the desired compound.
  • Compounds of formula I wherein Q is Q7 may be prepared by reacting an aminobenzisoxazole or aminobenziso-thiazole of formula III with a ⁇ -aminoaldehyde of formula XVII in the presence of a base in an inert solvent to form an intermediate compound and reacting the inter-mediate compound with phosgene or a phosgene equivalent.
  • Formula I compounds wherein Q is Q8 and W is halogen may be prepared by reacting a hydrazine compound of formula XIV or its hydrochloride salt with a 2-alkoxycarbonylalkanone of formula XVIII optionally in the presence of a base such as triethylamine or sodium acetate in an inert solvent such as ethanol or toluene to form a 2,3-dihydropyrazol-3-one of formula XIX and halogenating the 2,3-dihydropyrazol-3-one with phosphorus oxychloride or phosphorus oxybromide.
  • a base such as triethylamine or sodium acetate
  • an inert solvent such as ethanol or toluene
  • Formula I compounds wherein Q is Q8 and W is C 1 -C 3 -alkyl may be prepared by reacting a hydrazine compound of formula XIV with a 1,3-diketone of formula XX optionally in the presence of a base in an inert solvent.
  • Formula I compounds wherein Q is Q9 may be prepared by diazotizing an aminobenzisoxazole or aminobenzisothiazole of formula III to form an intermediate diazonium salt and reacting the intermediate salt in situ with a ⁇ -aminoacid of formula XXI in the presence of triethylamine.
  • Compounds of formula I wherein Q is Q10 may be prepared by reacting a hydrazine of formula XIV with an acyl halide of formula XXII in the presence of a base such as triethylamine or pyridine to form an acyl hydrazide of formula XXIII and reacting the acyl hydrazide with trichloromethyl chloroformate, phosgene or a suitable phosgene equivalent optionally in the presence of triethylamine.
  • a base such as triethylamine or pyridine
  • Formula I compounds wherein Q is Q11, A is sulfur, A 1 is oxygen and Z is CH may be prepared by reacting an isothiocyanate of formula XIII with an amine of formula XXIV to form a thiourea of formula XXV and reacting the thiourea with an ⁇ -halocarbonyl halide of formula XXVI in the presence of a base.
  • Formula I compounds wherein Q is Q11, A is sulfur, A 1 is oxygen and Z is nitrogen may be prepared by reacting an isothiocyanate of formula XIII with a substituted hydrazine of formula XXVII to form an intermediate compound of formula XXVIII and reacting the intermediate compound with phosgene or a suitable phosgene equivalent in the presence of a base such as triethylamine.
  • Compounds of formula I wherein Q is Q11, A and A 1 are oxygen and Z is CH may be prepared by reacting an isocyanate of formula IV with an amine of formula XXIV to form a urea of formula XXIX, dehydrating the urea to form a carbodiimide of formula XXX, reacting the carbodiimide with an ⁇ -halocarbonyl halide of formula XXVI to form a haloamidine of formula XXXI, hydrolyzing the haloamidine with aqueous acid to form an acylurea, heating the acylurea in situ to form an O-acylurea of formula XXXII and reacting the O-acylurea with a base such as triethylamine.
  • a base such as triethylamine
  • Formula I compounds wherein Q is Q12 and A and A 1 are oxygen may be prepared by reacting an aminobenzisoxazole or aminobenzisothiazole of formula III with an anhydride of formula XII to form an acid-amide of formula XXXIII and dehydrating the acid-amide with a dehydrating agent such as 1,3-dicyclohexylcarbodiimide.
  • a dehydrating agent such as 1,3-dicyclohexylcarbodiimide.
  • Compounds of formula I wherein Q is Q12, A is sulfur and A 1 is oxygen may be prepared by reacting an acid-amide of formula XXXIII with phosphorus pentasulfide or Lawesson's reagent followed by base to form an acidthioamide of formula XXXIV and dehydrating the acidthioamide with a dehydrating agent such as 1,3-dicyclohexylcarbodiimide.
  • a dehydrating agent such as 1,3-dicyclohexylcarbodiimide.
  • Certain formula I compounds wherein Q is Q13 may be prepared by reacting a thiourea of formula XXV with iodomethane to form an isothiourea of formula XXXV and reacting the isothiourea with a chloro-oxime of formula XXXVI.
  • Compounds of formula I wherein Q is Q14 may be prepared by reacting an aminobenzisoxazole or aminobenzisothiazole of formula III with ethyl chloroformate to form a carbamate of formula XXXVII and reacting the carbamate with a hydroxy ester of formula XXXVIII at an elevated temperature with removal of ethanol.
  • compounds of formula I wherein Q is Q14 may be prepared by reacting an isocyanate of formula IV with a hydroxy ester of formula XXXVIII to form an intermediate compound of formula XXXIX and reacting the intermediate compound with a base such as sodium acetate in an inert solvent such as toluene.
  • Formula I compounds wherein Q is Q15 may be prepared by reacting an isocyanate of formula IV with an ⁇ -amino- ⁇ , ⁇ -unsaturated ester of formula XL to form a urea of formula XLI and reacting the urea with a base such as sodium acetate in an inert solvent such as toluene at an elevated temperature.
  • formula I compounds wherein Q is Q15 may be prepared by reacting an isocyanate of formula IV with an amino acid of formula XLII to form a urea of formula XLIII, reacting the urea with aqueous acid to form a hydantoin of formula XLIV and reacting the hydantoin with an acetal of formula XLV.
  • Compounds of formula I wherein Q is Q16 may be prepared by reacting an isocyanate of formula IV with a hydroxy alkenoate of formula XLVI in the presence of a base such as triethylamine.
  • Formula I compounds wherein Q is Q17 may be prepared by reacting a formula I compound wherein Q is Q6 with a Grignard Reagent of formula XLVII in a solvent such as diethyl ether or tetrahydrofuran at an elevated temperature to form an intermediate compound of formula XLVIII and reacting the intermediate compound with potassium bisulfate at an elevated temperature.
  • Formula I compounds wherein Q is Q18 may be prepared by reacting an aminobenzisoxazole or aminobenzisothiazole of formula III with an anhydride of formula XLIX in acetic anhydride with a catalytic amount of sodium acetate at an elevated temperature, in acetic acid at an elevated temperature or in xylene with a catalytic amount of p-toluene sulfonic acid at an elevated temperature.
  • formula I compounds wherein Q is Q18 may be prepared by reacting an aminobenzisoxazole or aminobenzisothiazole of formula III with a diacid of formula L in xylene at reflux.
  • Compounds of formula I wherein Q is Q19 may be prepared by reacting an aminobenzisoxazole or aminobenzisothiazole of formula III with ethyl malonyldiurethane and sodium nitrite in acetic acid with a catalytic amount of concentrated hydrochloric acid to form a hydrazone of formula LI, cyclizing the hydrazone with base to form a triazinedione of formula LII and decarboxylating the triazinedione with mercaptoacetic acid at an elevated temperature and optionally alkylating the formula I compound wherein Q is Q 19 and R 11 is hydrogen with an alkyl halide and a base such as sodium hydride.
  • compounds of formula I wherein Q is Q19 and R 11 is hydrogen may be prepared by reacting a hydrazine of formula XIV with acetone in a sulfuric-acid solution to form a hydrazone of formula LIII, reacting the hydrazone with potassium cyanate in an acetic acid solution to form a triazolidine of formula LIV and reacting the triazolidine with pyruvic acid and sulfuric acid.
  • Formula I compounds wherein Q is Q20 may be prepared by reacting an isocyanate of formula IV with an amino ester of formula LV in the presence of a base such as sodium hydride to form an intermediate compound of formula LVI and cyclizing the intermediate compound with acid and optionally alkylating the formula I compound wherein Q is Q20 and R 15 is hydrogen with a C 1 -C 3 alkyl halide and a base such as sodium hydride.
  • compounds of formula I wherein Q is Q21 may be prepared by reacting an amine of formula LVII with an ⁇ , ⁇ -unsaturated ester of formula LVIII to form an amino ester of formula LIX and reacting the amino ester with an isocyanate of formula IV followed by heating in an acidic methanol solution.
  • Compounds of formula I wherein Q is Q22 may be prepared by reacting a hydrazine of formula XIV with a ⁇ -carbonyl aldehyde of formula LX followed by cyclization under acidic conditions to form a dihydropyridazinone of formula LXI and dehydrogenating the dihydropyridazinone with chloranil or 2,3-dichloro-5,6-dicyanobenzoquinone (DDQ) in an inert solvent such as dioxane or toluene at an elevated temperature.
  • DDQ 2,3-dichloro-5,6-dicyanobenzoquinone
  • Aminobenzisoxazole and aminobenzisothiazole compounds of formula III may be prepared by reducing a nitrobenzisoxazole or nitrobenzisothiazole of formula LXII with iron in acetic acid.
  • Certain nitrobenzisothiazole compounds of formula LXII may be prepared by reacting a ketone of formula LXIII with ammonia and sulfur.
  • certain nitrobenzisothiazole compounds of formula LXII wherein R 1 is R 2 and R 2 is phenyl optionally substituted as described hereinabove for formula I may be prepared by reacting a benzaldehyde of formula LXIV with a phenyl magnesium bromide of formula LXV to form an alcohol of formula LXVI, oxidizing the alcohol to form a benzophenone of formula LXVII, reacting the benzophenone with a base and methyl mercaptan to form an intermediate compound of formula LXVIII which is converted to its oxime of formula LXIX and reacting the oxime with acetic anhydride and pyridine.
  • Certain compounds of formula LXVII may also be prepared by reacting a benzoyl chloride of formula LXX with a methoxybenzene of formula LXXI in the presence of a Lewis acid such as aluminum chloride.
  • Certain nitrobenzisoxazole compounds of formula LXII wherein R 1 is OR 2 may be prepared by reacting a methyl salicylate of formula LXXII with hydroxylamine hydrochloride and a base such as sodium methoxide to form a salicylohydroxamic acid of formula LXXIII, reacting the salicylohydroxamic acid with 1,1'-carbonyldiimidazole and a base such as triethylamine to form a 1,2-benzisoxazol-3-ol of formula LXXIV, reacting the 1,2-benzisoxazol-3-ol with a halide compound of formula LXXV and a base such as potassium carbonate to form an intermediate compound of formula LXXVI and reacting the intermediate compound with nitric acid.
  • certain nitrobenzisoxazole compounds of formula LXII wherein R 1 is CH 2 CO 2 (C 1 -C 4 alkyl) may be prepared by reacting a phenol of formula LXXVII with malonic acid and zinc chloride in phosphorus oxychloride to form a 4-hydroxycoumarin of formula LXXVIII, reacting the 4-hydroxycoumarin with hydroxylamine hydrochloride and a base such as sodium methoxide to form a 1,2-benzisoxazole-3-acetic acid of formula LXXIX, reacting the 1,2-benzisoxazole-3-acetic acid with a C 1 -C 4 alcohol in the presence of hydrogen chloride to form a 1,2-benzisoxazole-3-acetate of formula LXXX and reacting the 1,2-benzisoxazole-3-acetate with nitric acid.
  • Certain nitrobenzisoxazole compounds wherein R 1 is R 2 may be prepared by reacting a benzophenone of formula LXVII with hydroxylamine hydrochloride in the presence of a base such as potassium hydroxide to form an oxime of formula LXXXI and reacting the oxime with a base such as potassium hydroxide.
  • the substituted benzisoxazole and benzisothiazole compounds of the present invention are effective herbicidal agents useful for the control of a wide variety of undesirable plant species. Those compounds are effective for controlling weeds native to both dry land and wet land areas.
  • the compounds are also useful as aquatic herbicides and are effective in controlling the above-said plants when applied to the foliage thereof or to soil or water containing seeds or other propagating organs thereof such as stolons, tubers or rhizomes, at rates of from about 0.016 to 4.0 kg/ha and preferably from about 0.125 to 4.0 kg/ha.
  • the compounds of the present invention are effective for controlling undesirable plant species including important weeds in transplanted rice culture.
  • the compounds may be applied to the soil or water containing transplanted rice plants and seeds or other propagating organs of a variety of weed species.
  • the compounds of this invention are best suited for use as broad spectrum herbicides, especially when applied postemergence to the locus in which weed control is desired. However, certain compounds of this invention are selective. In fact, some of the compounds of this invention are selective in crops such as soybeans and rice.
  • substituted benzisoxazole and benzisothiazole compounds of this invention are effective for controlling undesirable plant species when employed alone, they may also be used in combination with other biological chemicals, including other herbicides.
  • the formula I compounds of this invention may be applied to crops in the form of a solid or liquid herbicidal composition, comprising a herbicidally effective amount of the formula I compound dispersed or dissolved in an agronomically acceptable, inert solid or liquid carrier.
  • the compositions may be applied as preemergence or postemergence treatments.
  • the formula I compounds may be formulated as emulsifiable concentrates, wettable powders, granular formulations, flowable concentrates and the like.
  • NMR nuclear magnetic resonance spectroscopy
  • Hydrogen chloride gas is bubbled into a mixture of 4-chlorosalicylic acid (100 g, 0.579 mol) in methanol while maintaining the temperature at 45-50°C.
  • the reaction mixture is then stirred at room temperature for several hours, concentrated in vacuo and extracted with ether.
  • the combined organic extracts are washed sequentially with brine, saturated sodium hydrogen carbonate solution and brine, dried over anhydrous sodium sulfate and concentrated in vacuo to obtain an amber oil.
  • the oil is distilled under reduced pressure to give the title product as a colorless oil which is identified by NMR spectral analyses.
  • Hydroxylamine hydrochloride (20.65 g, 0.297 mol) is added to a mixture of sodium methoxide (53 g, 0.99 mol) in methanol while maintaining the temperature below 10°C.
  • a mixture of methyl 4-chlorosalicylate (46.2 g, 0.248 mol) in methanol is then added to the reaction mixture and the resultant mixture is stirred at room temperature for 10 days, acidified with concentrated hydrochloric acid (pH3) and filtered to give the title product as an off-white solid which is identified by NMR spectral analyses.
  • Nitric acid (70%, 3.0 mL, 47 mmol) is slowly added to a mixture of methyl 2-[(6-chloro-1,2-benzisoxazol-3-yl)oxy]propionate (6.0 g, 23.5 mmol) in concentrated sulfuric acid (50 mL) while maintaining the temperature below 10°C.
  • the reaction mixture is stirred for 1 hour on an ice/water bath and poured onto ice.
  • the resultant aqueous mixture is diluted with ether, stirred for several minutes and the ether is allowed to evaporate overnight.
  • the resultant mixture is filtered to obtain a solid which is dissolved in methylene chloride.
  • Methyl 6-fluoro-1,2-benzisoxazole-3-acetate (6.0 g, 28.7 mmol) is added portionwise to nitric acid (90%, 60 mL) at 0°C.
  • the reaction mixture is stirred at 0°C for 30 minutes and poured into an ice/water mixture.
  • the aqueous mixture is extracted with methylene chloride.
  • the organic extracts are combined, washed sequentially with water, saturated sodium hydrogen carbonate solution and brine, dried over anhydrous magnesium sulfate and concentrated in vacuo to obtain a yellow oil. Flash column chromatography of the oil using silica gel and ether/petroleum ether solutions gives the title product as a pale yellow solid which is identified by 1 HNMR spectral analysis.
  • N-[3-(2-propynyloxy)-1,2-benzisoxazol-5-yl]-1-cyclohexene-1,2-dicarboximide is obtained as a pale yellow solid, mp 147-148°C.
  • a solution of chromium(VI) oxide (91 g, 0.919 mol) in a 1:4 water/acetic acid solution is added portionwise to 2-chloro-2'-methoxy-5-nitrobenzhydrol (64.2 g, 0.219 mol) while maintaining the reaction mixture temperature at 25-35°C.
  • the reaction mixture is then stirred at 25-35°C for 1 hour, cooled, diluted with water and concentrated in vacuo to obtain a residue.
  • the residue is diluted with water and extracted with methylene chloride.
  • the organic extracts are combined, dried over anhydrous sodium sulfate, mixed with silica gel (10 g) and filtered. The filtrate is concentrated in vacuo to obtain an oil.
  • a solution of the oxime of 2-chloro-2'-methoxy-5-nitrobenzophenone (6.5 g, 16.28 mmol) in a 2:1 ethanol/ tetrahydrofuran mixture is added portionwise to a solution of potassium hydroxide in ethanol.
  • the reaction mixture is stirred for 45 minutes, treated with additional potassium hydroxide (4.9 g), stirred for several minutes, diluted with ice-water, acidified with concentrated hydrochloric acid (pH1-pH2) and extracted with methylene chloride.
  • the organic extracts are combined, washed sequentially with brine and saturated sodium hydrogen carbonate solution, dried over anhydrous sodium sulfate, diluted with hexanes, allowed to crystallize.
  • Methyl bromoacetate (0.75 mL, 7.69 mmol) is added to a mixture of N-[3-(o-hydroxyphenyl)-1,2-benzisoxazol-5-yl]-1-cyclohexene-1,2-dicarboximide (1.0 g, 2.77 mmol) and potassium carbonate (0.61 g, 4.42 mmol) in N,N-dimethylformamide.
  • the reaction mixture is stirred overnight at room temperature, diluted with an ice/water mixture and extracted with methylene chloride. The organic extracts are combined, washed with water, dried over anhydrous sodium sulfate and concentrated in vacuo to obtain a dark oil.
  • Methyl ⁇ -methyl-1,2-benzisothiazole-3-acetate (15.96 g, 72.13 mmol) is added dropwise to nitric acid (90%, 100 mL) while maintaining the reaction mixture temperature below 5°C.
  • nitric acid 90%, 100 mL
  • the reaction mixture is stirred overnight, poured onto ice and extracted with methylene chloride.
  • the organic extracts are combined, washed sequentially with water, saturated sodium hydrogen carbonate solution and brine, dried over anhydrous sodium sulfate and concentrated in vacuo to obtain an orange oil.
  • Column chromatography of the oil using silica gel and ether/hexanes solutions gives the title product as an orange solid, mp 88-90°C.
  • a solution of the yellow solid in methylene chloride is passed through a dry silica gel pad and concentrated in vacuo to yield a solid which is recrystallized from a methylene chloride/hexanes solution to give the title product as a solid, mp 124-125°C.
  • the postemergence herbicidal activity of the compounds of the present invention is demonstrated by the following tests, wherein a variety of dicotyledonous and monocotyledonous plants are treated with test compounds, dispersed in aqueous acetone mixtures.
  • test compounds dispersed in aqueous acetone mixtures.
  • seedling plants are grown in jiffy flats for about two weeks.
  • the test compounds are dispersed in 50/50 acetone/water mixtures containing 0.5% TWEEN®20, a polyoxyethylene sorbitan monolaurate surfactant of Atlas Chemical Industries, in sufficient quantities to provide the equivalent of about 0.125 kg to 1.000 kg per hectare of test compound when applied to the plants through a spray nozzle operating at 40 psi for a predetermined time.
  • the plants After spraying, the plants are placed on greenhouse benches and are cared for in the usual manner, commensurate with conventional greenhouse practices. From four to five weeks after treatment, the seedling plants are examined and rated according to the rating system set forth below. Data obtained are reported in Table I below. When more than one test is involved for a given compound, the data are averaged.
  • Plant species employed in these evaluations are reported by header abbreviation, common name and scientific name.
  • Results of herbicide evaluation are expressed on a rating scale (0-9).
  • the scale is based upon a visual observation of plant stand, vigor, malformation, size, chlorosis and overall plant appearance as compared with a control. Rating Meaning % Control Compared to Check 9 Complete Kill 100 8 Approaching Complete Kill 91-99 7 Good Herbicidal Effect 80-90 6 Herbicidal Effect 65-79 5 Definite Injury 45-64 4 Injury 30-44 3 Moderate Effect 16-29 2 Slight Effect 6-15 1 Trace Effect 1-5 0 No Effect 0 - No Evaluation PLANT SPECIES EMPLOYED IN HERBICIDAL EVALUATIONS Header Abb.
  • the preemergence herbicidal activity of the test compounds of the present invention is exemplified by the following tests in which the seeds of a variety of monocotyledonous and dicotyledonous plants are separately mixed with potting soil and planted on top of approximately one inch of soil in separate pint cups. After planting, the cups are sprayed with the selected aqueous acetone solution containing test compound in sufficient quantity to provide the equivalent of about 0.50 to 4.0 kg per hectare of test compound per cup. The treated cups are then placed on greenhouse benches, watered and cared for in accordance with conventional greenhouse procedures. From four to five weeks after treatment, the tests are terminated and each cup is examined and rated according to the rating system provided in Example 29.
  • transplanted rice to post-transplanted herbicide applications is determined as follows: two ten-day-old rice seedlings (CV. Tebonnet) are transplanted into a silt loam soil in 32 oz. plastic containers with a diameter of 10.5 cm and no drainage holes. After transplanting the containers are flooded and the water level is maintained at 1.5 to 3 cm above the soil surface. Three days after transplanting, the flooded soil surface of the containers is treated with the selected aqueous/acetone 50/50 v/v mixture containing the test compounds to provide the equivalent of 1.0, 0.5, 0.25, 0.125 and 0.063 kg/ha of active ingredient.
  • the treated containers are placed on greenhouse benches, watered such that the water level is maintained as stated above, and cared for according to normal greenhouse procedures. Three to four weeks after treatment the test is terminated and each container is examined and herbicidal effect rated according to the rating system provided in Example 29. The data obtained are reported in Table III.
  • Preemergence herbicidal activity under flooded paddy conditions is determined as follows: plant seeds or propagating organs are planted in the top 0.5 cm of silt loam soil in 32 oz. plastic containers with a diameter of 10.5 cm and no drainage holes. Water is added to these containers and maintained at 1.5 to 3 cm above the soil surface for the duration of the experiment.
  • the test compounds are applied as aqueous/acetone mixtures 50/50 v/v pipetted directly into the flood water to give the equivalent of 1.0, 0.5, 0.25, 0.125 and 0.063 kg/ha of active ingredient.
  • the treated containers are placed on greenhouse benches and cared for according to normal greenhouse procedures. Three to four weeks after treatment the test is terminated and each container is examined and herbicidal effect rated according to the rating system provided in Example 29. The data obtained are reported in Table III.
  • Plant species employed in this example are reported by header abbreviation, common name and scientific name.
  • Common Name Scientific Name ECHORC Watergrass (Calif.) ECHINOCHLOA ORYZOIDES (ARD.)FRITSCH CYPIR Rice Flatsedge CYPERUS IRIA CYPSE Flatsedge CYPERUS SEROTINUS, ROTTB. MOOVA Monochoria MONOCHORIA VAGINALIS, PRESL. SAGPY Arrowhead (pygmaea) SAGITTARIA PYGMAEA, L. ORYSAT Rice, Tebonnet ORYZA SATIVA, L. TEBONNET
  • N-[3-(o-methoxyphenyl)-1,2-benzisothiazol-5-yl]-1-cyclohexene-1,2-dicarboximide is useful for the preemergence control of watergrass, rice flatsedge, flatsedge and monochoria in the presence of transplanted rice.

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Claims (11)

  1. Composé ayant la formule de structure I
    Figure 01420001
    dans laquelle
    R est hydrogène, halogène, alkyle en C1-C4, haloalkyle en C1-C4, alkoxy en C1-C4 ou haloalkoxy en C1-C4;
    R1
    est halogène, X1R2 ou R2 ;
    X et X1
    sont chacun indépendamment O ou S ;
    R2
    est hydrogène,
    • alkyle en C1-C4 facultativement substitué avec un à trois atomes d'halogène, un à trois groupements alkoxy en C1-C4, un à trois groupements alkylthio en C1-C4, un groupement cyano, un groupement COR3, un groupement CO2R4, un groupement CONR5R6 ou un groupement phényle facultativement substitué avec un à trois atomes d'halogène, un à trois groupements alkyle en C1-C4, un à trois groupements alkoxy en C1-C4, un groupement cycloalkyle en C3-C6, un groupement haloalkyle en C1-C4, un groupement alkylthio en C1-C4, un groupement cyano, un groupement nitro, un groupement COR7, un groupement CO2R8 ou un groupement OR9,
    • cycloalkyle en C3-C7 facultativement substitué avec un à trois atomes d'halogène, un à trois groupements alkoxy en C1-C4, un à trois groupements alkylthio en C1-C4, un groupement cyano, un groupement COR3, un groupement CO2R4, un groupement CONR5R6 ou un groupement phényle facultativement substitué avec un à trois atomes d'halogène, un à trois groupements alkyle en C1-C4, un à trois groupements alkoxy en C1-C4, un groupement cycloalkyle en C3-C6, un groupement haloalkyle en C1-C4, un groupement alkylthio en C1-C4, un groupement cyano, un groupement nitro, un groupement COR7, un groupement CO2R8 ou un groupement OR9,
    • alcényle en C2-C6 facultativement substitué avec un à trois atomes d'halogène, un à trois groupements alkoxy en C1-C4, un à trois groupements alkylthio en C1-C4, un groupement cyano, un groupement COR3, un groupement CO2R4, un groupement CONR5R6 ou un groupement phényle facultativement substitué avec un à trois atomes d'halogène, un à trois groupements alkyle en C1-C4, un à trois groupements alkoxy en C1-C4, un groupement cycloalkyle en C3-C6, un groupement haloalkyle en C1-C4, un groupement alkylthio en C1-C4, un groupement cyano, un groupement nitro, un groupement COR7, un groupement CO2R8 ou un groupement OR9,
    • cycloalcényle en C4-C7 facultativement substitué avec un à trois atomes d'halogène, un à trois groupements alkoxy en C1-C4, un à trois groupements alkylthio en C1-C4, un groupement cyano, un groupement COR3, un groupement CO2R4, un groupement CONR5R6 ou un groupement phényle facultativement substitué avec un à trois atomes d'halogène, un à trois groupements alkyle en C1-C4, un à trois groupements alkoxy en C1-C4, un groupement cycloalkyle en C3-C6, un groupement haloalkyle en C1-C4, un groupement alkylthio en C1-C4, un groupement cyano, un groupement nitro, un groupement COR7, un groupement CO2R8 ou un groupement OR9,
    • alcynyle en C2-C6 facultativement substitué avec un à trois atomes d'halogène, un à trois groupements alkoxy en C1-C4, un à trois groupements alkylthio en C1-C4, un groupement cyano, un groupement COR3, un groupement CO2R4, un groupement CONR5R6 ou un groupement phényle facultativement substitué avec un à trois atomes d'halogène, un à trois groupements alkyle en C1-C4, un à trois groupements alkoxy en C1-C4, un groupement cycloalkyle en C3-C6, un groupement haloalkyle en C1-C4, un groupement alkylthio en C1-C4, un groupement cyano, un groupement nitro, un groupement COR7, un groupement CO2R8 ou un groupement OR9, ou
    • phényle facultativement substitué avec un à trois atomes d'halogène, un à trois groupements alkyle en C1-C4, un à trois groupements alkoxy en C1-C4, un groupement cycloalkyle en C3-C6, un groupement haloalkyle en C1-C4, un groupement alkylthio en C1-C4, un groupement cyano, un groupement nitro, un groupement COR3, un groupement CO2R4 ou un groupement OR9;
    R3, R5, R6 et R7
    sont chacun indépendamment hydrogène, alkyle en C1-C4, alcényle en C2-C4, alcynyle en C2-C4, benzyle ou phényle;
    R9
    est alkyle en C1-C4 substitué avec un groupement CO2R10;
    R4, R8 et R10
    sont chacun indépendamment hydrogène, alkyle en C1-C4, alcényle en C2-C4, alcynyle en C2-C4, benzyle, phényle ou un cation de métal alcalin, de métal alcalino-terreux, manganèse, cuivre, zinc, cobalt, argent ou nickel;
    Q
    est choisi parmi
    Figure 01460001
    Figure 01460002
    Figure 01460003
    Figure 01460004
    Figure 01460005
    Figure 01470001
    Figure 01470002
    ou
    Figure 01470003
    R11 et R12
    sont chacun indépendamment hydrogène,
    • alkyle en C1-C6 facultativement substitué avec un ou plusieurs atomes d'halogène, ou
    • cycloalkyle en C3-C6 facultativement substitué avec un ou plusieurs atomes d'halogène, et
    quand R11 et R12 sont pris ensemble avec les atomes auxquels ils sont attachés, ils représentent un cycle saturé ou insaturé à quatre à sept membres facultativement interrompu par O, S ou N, et facultativement substitué avec un à trois groupements méthyle ou un ou plusieurs atomes d'halogène;
    R13, R14 et R15
    sont chacun indépendamment hydrogène ou alkyle en C1-C3;
    A et A1
    sont chacun indépendamment O ou S;
    V
    est hydroxy, halogène, alkoxy en C1-C3 ou alkylthio en C1-C3;
    W
    est halogène ou alkyle en C1-C3; et
    Z est N
    ou CH.
  2. Composé selon la revendication 1 dans lequel
    X1
    est O;
    R2
    est hydrogène,
    • alkyle en C1-C4 facultativement substitué avec un groupement alkoxy en C1-C4, alkylthio en C1-C4 ou CO2R4,
    • cycloalkyle en C3-C6 facultativement substitué avec un groupement alkoxy en C1-C4, alkylthio en C1-C4 ou CO2R4,
    • alcényle en C3-C6,
    • alcynyle en C3-C6, ou
    • phényle facultativement substitué avec un à trois atomes d'halogène, un groupement alkoxy en C1-C4, un groupement alkylthio en C1-C4 ou un groupement OR9;
    R4 et R10
    sont chacun indépendamment hydrogène ou alkyle en C1-C4;
    Q
    est
    Figure 01480001
    et
    R11 et R12
    sont chacun indépendamment hydrogène,
    • alkyle en C1-C6 facultativement substitué avec un ou plusieurs atomes d'halogène,
    • cycloalkyle en C3-C6 facultativement substitué avec un ou plusieurs atomes d'halogène, et
    quand R11 et R12 sont pris ensemble avec les atomes auxquels ils sont attachés, ils peuvent former un cycle dans lequel R11R12 est un groupement alcylène en C2-C5 facultativement substitué avec un à trois groupements méthyle ou un ou plusieurs atomes d' halogène.
  3. Composé selon la revendication 2 ayant la formule de structure
    Figure 01490001
  4. Composé selon la revendication 3 choisi parmi le groupe constitué de
    5-(1-cyclohexène-1,2-dicarboximido)-α-méthyl-1,2-benzisothiazol-3-acétate de méthyle;
    5-(1-cyclohexène-1,2-dicarboximido)-1,2-benziso-thiazol-3-acétate de méthyle;
    N-[3-(o-méthoxyphényl)-1,2-benzisothiazol-5-yl]-1-cyclohexène-1,2-dicarboximide;
    N-(3-phényl-1,2-benzisothiazol-5-yl)-1-cyclohexéne-1,2-dicarboximide;
    N-(1,2-benzisothiazol-5-yl)-1-cyclohexène-1,2-dicarboximide;
    {O-[5-(1-cyclohexène-1,2-dicarboximido)-1,2-benzisoxazol-3-yl]phénoxy}acétate de méthyle;
    5-(1-cyclohexène-1,2-dicarboximido)-6-fluoro-1,2-benzisoxazol-3-acétate de méthyle;
    5-(1-cyclohexène-1,2-dicarboximido)-6-fluoro-α-méthyl-1,2-benzisoxazol-3-acétate de méthyle;
    5-(3,4-diméthyl-2,5-dioxo-3-pyrrolin-1-yl)-6-fluoro-α-méthyl-1,2-benzisoxazol-3-acétate de méthyle;
    N-[3-(allyloxy)-1,2-benzisoxazol-5-yl)-1-cyclohexène-1,2-dicarboximide;
    2-{[6-chloro-5-(1-cyclohexène-1,2-dicarboximido)-1,2-benzisoxazol-3-yl]oxy}propionate de méthyle, et
    {[5-(1-cyclohexène-1,2-dicarboximido)-6-fluoro-1,2-benzisoxazol-3-yl]oxy}acétate de méthyle.
  5. Procédé pour le contrôle d'espèces de plantes indésirables qui comprend l'application au feuillage desdites plantes ou au sol ou à l'eau contenant les graines ou d'autres organes de propagation de celles-ci, d'une quantité efficace comme herbicide d'un composé ayant la formule de structure
    Figure 01500001
    dans laquelle R, R1, X et Q sont comme décrit dans la revendication 1.
  6. Procédé selon la revendication 5 dans lequel
    X1
    est O;
    R2
    est hydrogène,
    • alkyle en C1-C4 facultativement substitué avec un groupement alkoxy en C1-C4, alkylthio en C1-C4 ou CO2R4,
    • cycloalkyle en C3-C6 facultativement substitué avec un groupement alkoxy en C1-C4, alkylthio en C1-C4 ou CO2R4,
    • alcényle en C3-C6,
    • alcynyle en C3-C6, ou
    • phényle facultativement substitué avec un à trois atomes d'halogène, un groupement alkoxy en C1-C4, un groupement alkylthio en C1-C4 ou un groupement OR9;
    R4 et R10
    sont chacun indépendamment hydrogène ou alkyle en C1-C4;
    Q
    est
    Figure 01510001
    et
    R11 et R12
    sont chacun indépendamment hydrogène,
    • alkyle en C1-C6 facultativement substitué avec un ou plusieurs atomes d'halogène,
    • cycloalkyle en C3-C6 facultativement substitué avec un ou plusieurs atomes d'halogène, et
    quand R11 et R12 sont pris ensemble avec les atomes auxquels ils sont attachés, ils peuvent former un cycle dans lequel R11R12 est un groupement alcylène en C2-C5 facultativement substitué avec un à trois groupements méthyle ou un ou plusieurs atomes d'halogène.
  7. Procédé selon la revendication 6 dans lequel le composé est choisi parmi le groupe constitué de
    5-(1-cyclohexène-1,2-dicarboximido)-α-méthyl-1,2-benzisothiazol-3-acétate de méthyle;
    5-(1-cyclohexène-1,2-dicarboximido)-1,2-benziso-thiazol-3-acétate de méthyle;
    N-[3-(o-méthoxyphényl)-1,2-benzisothiazol-5-yl]-1-cycle-hexène-1,2-dicarboximide;
    N-(3-phényl-1,2-benzisothiazol-5-yl)-1-cyclohexène-1,2-dicarboximide;
    N-(1,2-benzisothiazol-5-yl)-1-cyclohexène-1,2-dicarboximide;
    {o-[5-(1-cyclohexène-1,2-dicarboximido)-1,2-benzisoxazol-3-yl]phénoxy}acétate de méthyle;
    5-(1-cyclohexène-1,2-dicarboximido)-6-fluoro-1,2-benzisoxazol-3-acétate de méthyle;
    5-(1-cyclohexène-1,2-dicarboximido)-6-fluoro-α-méthyl-1,2-benzisoxazol-3-acétate de méthyle;
    5-(3,4-diméthyl-2,5-dioxo-3-pyrrolin-1-yl)-6-fluoro-α-méthyl-1,2-benzisoxazol-3-acétate de méthyle;
    N-[3-(allyloxy)-1,2-benzisoxazol-5-yl]-1-cyclohexène-1,2-dicarboximide;
    2-{[6-chloro-5-(1-cyclohexène-1,2-dicarboximido)-1,2-benzisoxazol-3-yl]oxy}propionate de méthyle, et
    {[5-(1-cyclohexène-1,2-dicarboximido)-6-fluoro-1,2-benzisoxazol-3-yl]oxy}acétate de méthyle.
  8. Procédé selon l'une quelconque des revendications 5 à 7 qui comprend l'application dudit composé au feuillage desdites plantes à un taux d'environ 0,016 kg/ha à 4,0 kg/ha.
  9. Procédé pour le contrôle d'espèces de plantes indésirables dans le riz transplanté qui comprend l'application au sol ou à l'eau contenant les graines ou d'autres organes de propagation desdites espèces de plantes indésirables, après transplantation du riz, d'une quantité efficace comme herbicide d'un composé ayant la formule de structure
    Figure 01520001
    dans laquelle R, R1, X et Q sont comme décrits dans la revendication 1.
  10. Composition herbicide qui comprend un support solide ou liquide inerte et une quantité efficace comme herbicide d'un composé ayant la formule de structure
    Figure 01530001
    dans laquelle R, R1, X et Q sont comme décrits dans la revendication 1.
  11. Procédé pour la préparation des composés de formule I comme définis dans la revendication 1 comprenant au moins une des étapes suivantes:
    a) préparation d'un composé de formule I dans lequel Q est Q1 par réaction d'un isocyanate de formule IV
    Figure 01530002
    avec un acide aminé de formule V
    Figure 01530003
    ou par réaction d'un isocyanate de formule IV avec un α-bromocarboxamide de formule VIII
    Figure 01530004
    ou par réaction d'une urée de formule VII
    Figure 01540001
    avec du chlorure d'hydrogène éthanolique;
    b) préparation d'un composé de formule I dans lequel Q est Q2 par réaction d'un azide de formule IX
    Figure 01540002
    avec un isocyanate de formule X R11NCO ou par alkylation d'un composé de formule XI
    Figure 01540003
    c) préparation d'un composé de formule I dans lequel Q est Q6 et A et A1 sont O par réaction d'un aminobenzisoxazole ou aminobenzisothiazole de formule III
    Figure 01550001
    avec un composé d'anhydride de formule XII
    Figure 01550002
    d) préparation d'un composé de formule I dans lequel Q est Q6 et au moins un des A ou A1 est S en traitant un compose de formule I dans lequel Q est Q6 et A et A1 sont O avec du pentasulfure de phosphore ou le réactif de Lawesson (2,4-bis(4-méthoxyphényl)-1,3-dithia-2,4-diphosphétane-2,4-disulfure) dans un solvant inerte;
    e) préparation d'un composé de formule I dans lequel Q est Q3 et V est OH par réaction d'un composé de formule I dans lequel Q est Q6 et A et A1 sont O avec du borohydrure de sodium;
    ou préparation d'un composé de formule I dans lequel Q est Q3 et V est alkoxy en C1-C3 par alkylation d'un composé dans lequel Q est Q3 et V est OH;
    ou préparation d'un composé de formule I dans lequel Q est Q3 et V est halogène par halogénation d'un composé dans lequel Q est Q3 et V est OH;
    ou préparation d'un composé de formule I dans lequel Q est Q3 et V est alkylthio en C1-C3 par réaction d'un composé de formule I dans lequel Q est Q3 et V est halogène avec un alkylsulfure en C1-C3;
    f) préparation d'un composé de formule I dans lequel Q est Q5, Z est azote et A et A1 sont oxygène par réaction d'un composé de formule LXXXII
    Figure 01560001
    avec une base
    ou préparation d'un composé de formule I dans lequel Q est Q5, Z est azote, A est soufre et A1 est oxygène par réaction d'un composé de formule LXXXIII
    Figure 01560002
    avec une base
    ou préparation d'un composé de formule I dans lequel Q est Q5, Z est carbone, A est soufre et A1 est oxygène par réaction d'un composé de thiourée de formule LXXXIX
    Figure 01570001
    avec du chlorure d'hydrogène éthanolique ou une base
    ou préparation d'un composé de formule I dans lequel Q est Q5 et A et/ou A1 sont soufre en traitant un composé de formule I dans lequel Q est Q5 et A et A1 sont oxygène avec du pentasulfure de phosphore ou le réactif de Lawesson (2,4-bis(4-méthoxyphényl)-1,3-dithia-2,4-diphosphétane-2,4-disulfure) dans un solvant inerte comme le toluène, le xylène ou le chloroforme;
    g) préparation d'un composé de formule I dans lequel Q est Q4 par réaction d'une amidrazone de formule XVI
    Figure 01570002
    avec du phosgène ou un équivalent approprié du phosgène;
    h) préparation d'un composé de formule I dans lequel Q est Q7 par réaction d'un composé de formule XC
    Figure 01580001
    avec du phosgène ou un équivalent du phosgène;
    i) préparation d'un composé de formule I dans lequel Q est Q8 et W est halogène par halogénation d'une 2,3-dihydropyrazol-3-one de formule XIX
    Figure 01580002
    avec de l'oxychlorure de phosphore ou de l'oxybromure de phosphore
    ou préparation d'un composé de formule I dans lequel Q est Q8 et W est alkyle en C1-C3 par réaction d'un composé d'hydrazine de formule XIV
    Figure 01580003
    avec une 1,3-dicétone de formule XX
    Figure 01590001
    j) préparation d'un composé de formule I dans lequel Q est Q9 par diazotation d'un aminobenzisoxazole ou aminobenzisothiazole de formule III
    Figure 01590002
    pour former un sel intermédiaire et réaction du sel intermédiaire in situ avec un β-aminoacide de formule XXI
    Figure 01590003
    en présence de triéthylamine;
    k) préparation d'un composé de formule I dans lequel Q est Q10 par réaction d'un hydrazide d'acyle de formule XXIII
    Figure 01590004
    avec du chloroformiate de trichlorométhyle, du phosgène ou un équivalent approprié du phosgène facultativement en présence de triéthylamine;
    l) préparation d'un composé de formule I dans lequel Q est Q11, A est soufre, A1 est oxygène et Z est CH par réaction d'une thiourée de formule XXV
    Figure 01600001
    avec un halogénure de α-halocarbonyle de formule XXVI
    Figure 01600002
    ou préparation un composé de formule I dans lequel Q est Q11, A est soufre, A1 est oxygène et Z est azote par réaction d'un composé de formule XXVIII
    Figure 01600003
    avec du phosgène ou un équivalent du phosgène approprié
    ou préparation d'un composé de formule I dans lequel Q est Q11, A et A1 sont oxygène et Z est CH par réaction d'une O-acylurée de formule XXXII
    Figure 01610001
    avec une base;
    m) préparation d'un composé de formule I dans lequel Q est Q12 et A et A1 sont oxygène par déshydratation d'un acide amide de formule XXXIII
    Figure 01610002
    ou préparation d'un composé de formule I dans lequel Q est Q12, A est soufre et A1 est oxygène par déshydratation d'un acidethioamide de formule XXXIV
    Figure 01610003
    n) préparation d'un composé de formule I dans lequel Q est Q13 par réaction d'une isothiourée de formule XXXV
    Figure 01620001
    avec une chlorooxime de formule XXXVI
    Figure 01620002
    o) préparation d'un composé de formule I dans lequel Q est Q14 par réaction d'un carbamate de formule XXXVII
    Figure 01620003
    avec un hydroxyester de formule XXXVIII
    Figure 01620004
    ou préparation d'un composé de formule I dans lequel Q est Q14 par réaction d'un composé de formule XXXIX
    Figure 01620005
    avec une base
    p) préparation d'un composé de formule I dans lequel Q est Q15 par réaction d'une urée de formule XLI
    Figure 01630001
    avec une base
    ou préparation d'un composé de formule I dans lequel Q est Q15 par réaction d'une hydantoïne de formule XLIV
    Figure 01630002
    avec un acétal de formule XLV R13R14C(OCH3)2
    q) préparation d'un composé de formule I dans lequel Q est Q16 par réaction d'un isocyanate de formule IV
    Figure 01640001
    avec un hydroxyalcénoate de formule XLVI
    Figure 01640002
    r) préparation d'un composé de formule I dans lequel Q est Q17 par réaction d'un composé de formule XLVIII
    Figure 01640003
    avec du bisulfate de potassium
    s) préparation d'un composé de formule I dans lequel Q est Q18 par réaction d'un aminobenzisoxazole ou aminobenzisothiazole de formule III
    Figure 01640004
    avec un anhydride de formule XLIX
    Figure 01650001
    ou préparation d'un composé de formule I dans lequel Q est Q18 par réaction d'un aminobenzisoxazole ou aminobenzisothiazole de formule III avec un diacide de formule L
    Figure 01650002
    t) préparation d'un composé de formule I dans lequel Q est Q19 et R11 est hydrogène par décarboxylation d'une triazinedione de formule LII
    Figure 01650003
    ou par réaction d'une triazolidine de formule LIV
    Figure 01650004
    avec de l'acide pyruvique et de l'acide sulfurique
    ou préparation d'un composé de formule I dans lequel Q est Q19 et R11 est alkyle par alkylation du composé de formule I dans lequel Q est Q19 et R11 est hydrogène;
    u) préparation d'un composé de formule I dans lequel Q est Q20 et R15 est hydrogène par cyclisation d'un composé de formule LVI
    Figure 01660001
    ou préparation d'un composé de formule I dans lequel Q est Q20 et R15 est alkyle par alkylation du composé de formule I dans lequel Q est Q20 et R15 est hydrogène;
    v) préparation d'un composé de formule I dans lequel Q est Q21 par réaction d'un composé de formule I dans lequel Q est Q20 et R11 est hydrogène avec du borohydrure de sodium
    ou par réaction d'un aminoester de formule LIX
    Figure 01660002
    avec un isocyanate de formule IV
    Figure 01670001
    ou
    w) préparation d'un composé de formule I dans lequel Q est Q22 par déshydrogénation de dihydropyridazinone de formule LXI
    Figure 01670002
    avec du chloranile ou de la 2,3-dichloro-5,6-dicyanobenzoquinone (DDQ).
EP96300453A 1995-02-10 1996-01-23 Benzisoxazoles et benzisothiazoles substitués et leur utilisation comme herbicides Expired - Lifetime EP0726268B1 (fr)

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SI9630205T SI0726268T1 (en) 1995-02-10 1996-01-23 Substituted benzisoxazole and benzisothiazole herbicidal agents

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US387143 1995-02-10
US08/387,143 US5484763A (en) 1995-02-10 1995-02-10 Substituted benzisoxazole and benzisothiazole herbicidal agents

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HU218871B (hu) 2000-12-28
EP0726268A1 (fr) 1996-08-14
CA2169145A1 (fr) 1996-08-11
JP4167731B2 (ja) 2008-10-22
HU9600302D0 (en) 1996-04-29
DK0726268T3 (da) 2000-11-27
CA2169145C (fr) 2007-03-27
TW290430B (fr) 1996-11-11
SK16596A3 (en) 1996-11-06
CZ27896A3 (en) 1996-09-11
ES2153076T3 (es) 2001-02-16
ZA96937B (en) 1997-11-06
AU4440896A (en) 1996-08-22
SI0726268T1 (en) 2001-02-28
GR3035281T3 (en) 2001-04-30
KR960031458A (ko) 1996-09-17
AR000929A1 (es) 1997-08-27
CN1136561A (zh) 1996-11-27
IL117073A (en) 2000-06-29
BR9600368A (pt) 1999-08-03
DE69610786D1 (de) 2000-12-07
AU711291B2 (en) 1999-10-07
US5484763A (en) 1996-01-16
IL117073A0 (en) 1996-06-18
CN1055686C (zh) 2000-08-23
HUP9600302A1 (en) 1997-02-28
JPH08253476A (ja) 1996-10-01
US5523278A (en) 1996-06-04
ATE197301T1 (de) 2000-11-15

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